diff options
Diffstat (limited to 'ioq3-r437/src/botlib/l_crc.c')
| -rw-r--r-- | ioq3-r437/src/botlib/l_crc.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/ioq3-r437/src/botlib/l_crc.c b/ioq3-r437/src/botlib/l_crc.c deleted file mode 100644 index e27b146e..00000000 --- a/ioq3-r437/src/botlib/l_crc.c +++ /dev/null @@ -1,151 +0,0 @@ -/* -=========================================================================== -Copyright (C) 1999-2005 Id Software, Inc. - -This file is part of Quake III Arena source code. - -Quake III Arena source code is free software; you can redistribute it -and/or modify it under the terms of the GNU General Public License as -published by the Free Software Foundation; either version 2 of the License, -or (at your option) any later version. - -Quake III Arena source code is distributed in the hope that it will be -useful, but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with Quake III Arena source code; if not, write to the Free Software -Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA -=========================================================================== -*/ - -/***************************************************************************** - * name: l_crc.c - * - * desc: CRC calculation - * - * $Archive: /MissionPack/CODE/botlib/l_crc.c $ - * - *****************************************************************************/ - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> - -#include "../qcommon/q_shared.h" -#include "botlib.h" -#include "be_interface.h" //for botimport.Print - - -// FIXME: byte swap? - -// this is a 16 bit, non-reflected CRC using the polynomial 0x1021 -// and the initial and final xor values shown below... in other words, the -// CCITT standard CRC used by XMODEM - -#define CRC_INIT_VALUE 0xffff -#define CRC_XOR_VALUE 0x0000 - -unsigned short crctable[257] = -{ - 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, - 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, - 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, - 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, - 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485, - 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d, - 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4, - 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc, - 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823, - 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, - 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, - 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, - 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, - 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49, - 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70, - 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78, - 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f, - 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067, - 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, - 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, - 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, - 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, - 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c, - 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634, - 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab, - 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3, - 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a, - 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, - 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, - 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, - 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, - 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0 -}; - -//=========================================================================== -// -// Parameter: - -// Returns: - -// Changes Globals: - -//=========================================================================== -void CRC_Init(unsigned short *crcvalue) -{ - *crcvalue = CRC_INIT_VALUE; -} //end of the function CRC_Init -//=========================================================================== -// -// Parameter: - -// Returns: - -// Changes Globals: - -//=========================================================================== -void CRC_ProcessByte(unsigned short *crcvalue, byte data) -{ - *crcvalue = (*crcvalue << 8) ^ crctable[(*crcvalue >> 8) ^ data]; -} //end of the function CRC_ProcessByte -//=========================================================================== -// -// Parameter: - -// Returns: - -// Changes Globals: - -//=========================================================================== -unsigned short CRC_Value(unsigned short crcvalue) -{ - return crcvalue ^ CRC_XOR_VALUE; -} //end of the function CRC_Value -//=========================================================================== -// -// Parameter: - -// Returns: - -// Changes Globals: - -//=========================================================================== -unsigned short CRC_ProcessString(unsigned char *data, int length) -{ - unsigned short crcvalue; - int i, ind; - - CRC_Init(&crcvalue); - - for (i = 0; i < length; i++) - { - ind = (crcvalue >> 8) ^ data[i]; - if (ind < 0 || ind > 256) ind = 0; - crcvalue = (crcvalue << 8) ^ crctable[ind]; - } //end for - return CRC_Value(crcvalue); -} //end of the function CRC_ProcessString -//=========================================================================== -// -// Parameter: - -// Returns: - -// Changes Globals: - -//=========================================================================== -void CRC_ContinueProcessString(unsigned short *crc, char *data, int length) -{ - int i; - - for (i = 0; i < length; i++) - { - *crc = (*crc << 8) ^ crctable[(*crc >> 8) ^ data[i]]; - } //end for -} //end of the function CRC_ProcessString |